111201020111 has 8 divisors (see below), whose sum is σ = 120829632000. Its totient is φ = 101950000920.

The previous prime is 111201020081. The next prime is 111201020129. The reversal of 111201020111 is 111020102111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111201020111 - 2¹⁰ = 111201019087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111201020092 and 111201020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201022111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94397561 + ... + 94398738.

It is an arithmetic number, because the mean of its divisors is an integer number (15103704000).

Almost surely, 2^111201020111 is an apocalyptic number.

111201020111 is a deficient number, since it is larger than the sum of its proper divisors (9628611889).

111201020111 is a wasteful number, since it uses less digits than its factorization.

111201020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188796349.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111201020111 its reverse (111020102111), we get a palindrome (222221122222).

The spelling of 111201020111 in words is "one hundred eleven billion, two hundred one million, twenty thousand, one hundred eleven".